ITU-T recommendation for synchronous frame
structures used at 1544, 6312, 2048, 8488 and 44736Kbit/s hierarchical
ITU-T recommendation for ATM cell mapping into digital hierarchy.
hardware and/or software set-up that translates between two dissimilar
protocols, for example Prodigy has a gateway that translates between its
internal, proprietary e-mail format and Internet e-mail format. More
loosely defined as a gateway to any mechanism for providing access to
another system, e.g. AOL might be called a gateway to the Internet.
Refers to the provisioning of a higher level
grouping to detailing into lower increments. For instance, a
single DS1 (aka T1) may be
'groomed' into 28 DS0's, or may be 'groomed' into a
Single 1.544mbps channel.